Uyaly () is an alkaline lake in Akkuly District, Pavlodar Region, Kazakhstan.
The lake is located about west of the Russia-Kazakhstan border. The nearest village is Sharbakty to the north. Akkuly, the district capital, lies to the northwest.
Geography Uyaly is an endorheic lake part of the Irtysh basin. It lies in a tectonic depression of the Kulunda Plain. Lake Sharbakty lies to the north, Tuz to the east and Tengizsor to the southeast. River Irtysh flows to the southwest. The M38 Highway from the Border of Russia to Pavlodar and Semey (Semipalatinsk), passes to the northeast of the eastern end of the lake.Google Earth
The lake has an oval shape roughly oriented in an east–west direction. It doesn't dry out in the summer and always freezes in the winter. Unlike the other lakes in the area, Uyaly's waters are only slightly saline, with a low mineralization of , carbonate and bicarbonate being the predominant ions. The pH of the waters is 9.5 and among the lakes of the region only lake Borli further north has an almost as high alkalinity.Nature of Kazakhstan Encyclopedia / General editor. B. O. Jacob. - Almaty: "Kazakh Encyclopedia" LLP, 2011. T.Z. - 304 pages. ISBN 9965-893-64-0 (T.Z.), ISBN 9965-893-19-5
Flora and fauna Lake Uyaly is surrounded by steppe vegetation.
See also List of soda lakes
References
External links Hydrochemical Research and Geochemical Classification of Salt Lakes in the Pavlodar Region